Impact of Imperfect Channel State Information on RS Coding Aided Hybrid-ARQ in Rayleigh Fading Channels
Impact of Imperfect Channel State Information on RS Coding Aided Hybrid-ARQ in Rayleigh Fading Channels
Hybrid Automatic-Repeat-reQuest (ARQ) schemes are capable of maintaining reliable communications for transmission over hostile wireless channels. In coherent detection aided schemes, the achievable performance substantially depends on the accuracy of channel state information (CSI). In this paper, the impact of imperfect CSI on Reed-Solomon (RS) coded Hybrid-ARQ systems is investigated for transmission over block-Rayleigh fading channels. The corresponding goodput equation is derived and used to evaluate the system’s performance. The effects of code rate and channel quality are also visualized. Furthermore, the results are utilized for the optimization of the pilot versus data symbols power allocation in order to maximize the system’s goodput. Quantitatively, the proposed scheme provides a 2.5dB Eb /N0 gain at a given goodput for the (255/223) RS code defined over the GF (256).
978-1-4244-6402-9
Ngo, Hoang Anh
c7839dbb-8b72-4376-9f70-0ab7dd5ce400
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
May 2010
Ngo, Hoang Anh
c7839dbb-8b72-4376-9f70-0ab7dd5ce400
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Ngo, Hoang Anh and Hanzo, Lajos
(2010)
Impact of Imperfect Channel State Information on RS Coding Aided Hybrid-ARQ in Rayleigh Fading Channels.
ICC 2010, Cape Town, South Africa.
23 - 27 May 2010.
(doi:10.1109/ICC.2010.5501886).
Record type:
Conference or Workshop Item
(Paper)
Abstract
Hybrid Automatic-Repeat-reQuest (ARQ) schemes are capable of maintaining reliable communications for transmission over hostile wireless channels. In coherent detection aided schemes, the achievable performance substantially depends on the accuracy of channel state information (CSI). In this paper, the impact of imperfect CSI on Reed-Solomon (RS) coded Hybrid-ARQ systems is investigated for transmission over block-Rayleigh fading channels. The corresponding goodput equation is derived and used to evaluate the system’s performance. The effects of code rate and channel quality are also visualized. Furthermore, the results are utilized for the optimization of the pilot versus data symbols power allocation in order to maximize the system’s goodput. Quantitatively, the proposed scheme provides a 2.5dB Eb /N0 gain at a given goodput for the (255/223) RS code defined over the GF (256).
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Published date: May 2010
Additional Information:
Event Dates: May 23-27, 2010
Venue - Dates:
ICC 2010, Cape Town, South Africa, 2010-05-23 - 2010-05-27
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 271208
URI: http://eprints.soton.ac.uk/id/eprint/271208
ISBN: 978-1-4244-6402-9
PURE UUID: edf06cec-02c2-42b5-8ea1-2edb8d4a39f3
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Date deposited: 31 May 2010 18:44
Last modified: 18 Mar 2024 02:34
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Author:
Hoang Anh Ngo
Author:
Lajos Hanzo
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